AVX-512: Added shuffle instructions - 
 VPSHUFD, VPERMILPS, VMOVDDUP, VMOVLHPS, VMOVHLPS, VSHUFPS, VALIGN
 single and double forms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189215 91177308-0d34-0410-b5e6-96231b3b80d8